18-letter words containing p, e, d, r, o, s
- protective custody — detention of a person by the police solely as protection against a possible attack or reprisal by someone.
- pseudo-anarchistic — a person who advocates or believes in anarchy or anarchism.
- pseudotuberculosis — an acute, sometimes fatal disease of rodents, birds, and other animals, including humans, caused by the bacterium Yersinia (Pasteurella) pseudotuberculosis, and characterized by the formation of nodules resembling those that result from tuberculosis.
- put heads together — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
- qattara depression — a desert basin in the Libyan Desert, in NW Egypt: lowest point is 435 feet (133 meters) below sea level. 6950 sq. mi. (18,000 sq. km).
- radiation exposure — exposure to radiant energy or to the particles emitted in the transfer of radiant energy, esp the particles and gamma rays emitted in nuclear decay; exposure to radioactive substances
- radiation pressure — the pressure exerted on a surface by electromagnetic radiation or by sound waves.
- radical expression — an expression in which radical signs appear.
- red-spotted purple — any color having components of both red and blue, such as lavender, especially one deep in tone.
- registered company — a company which has officially registered its business
- reinforced plastic — plastic with fibrous matter, such as carbon fibre, embedded in it to confer additional strength
- repossession order — If a bank or building society issues a repossession order, they officially tell someone that they are going to repossess their home.
- rhodes scholarship — one of a number of scholarships at Oxford University, established by the will of Cecil Rhodes, for selected students (Rhodes scholars) from the British Commonwealth and the United States.
- rooted to the spot — If you are rooted to the spot, you are unable to move because you are very frightened or shocked.
- scholarship holder — a person who, because of academic merit, receives financial aid for their studies
- scissors-and-paste — designating or of a piece of writing that has been assembled from a variety of sources rather than by original research, often in a hasty or uninspired way
- seafloor spreading — a process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads out.
- secondary syphilis — the second stage of syphilis, characterized by eruptions of the skin and mucous membrane.
- self-comprehending — to understand the nature or meaning of; grasp with the mind; perceive: He did not comprehend the significance of the ambassador's remark.
- september holidays — a period of time in September when people do not have to go to school, college or work
- sheltered workshop — a place of employment for persons with disabilities where their rights are protected and their needs are met.
- soda-lime feldspar — plagioclase.
- solitary sandpiper — a North American sandpiper, Tringa solitaria, of inland wetlands, having a brownish-gray, white-spotted back and whitish underparts.
- sonic depth finder — a sonar instrument that uses echolocation to measure depths under water.
- sound spectrograph — an electronic device for recording a sound spectogram.
- spotted flycatcher — a European woodland songbird, Muscicapa striata, with a greyish-brown streaked plumage: family Muscicapidae (Old World flycatchers)
- spread one's wings — to make full use of one's abilities
- summary proceeding — a mode of trial authorized by statute to be held before a judge without the usual full hearing.
- supraorbital ridge — browridge.
- temporary hardness — hardness of water due to the presence of magnesium and calcium hydrogencarbonates, which can be precipitated as carbonates by boiling
- the lords temporal — (in Britain) peers other than bishops in their capacity as members of the House of Lords
- to get a bad press — If someone or something gets a bad press, they are criticized, especially in the newspapers, on television, or on radio. If they get a good press, they are praised.
- to speak your mind — If you speak your mind, you say firmly and honestly what you think about a situation, even if this may offend or upset people.
- to sweep the board — If someone sweeps the board in a competition or election, they win nearly everything that it is possible to win.
- transporter bridge — a bridge for carrying passengers and vehicles by means of a platform suspended from a trolley.
- under-compensation — to compensate or pay less than is fair, customary, or expected.
- wild passionflower — the maypop, Passiflora incarnata.